Sign framework

Claim 1

IN AN INTERNALLY LIGHTED SIGN HAVING A PAIR OF SPACED APART TRANSLUCENT DISPLAY FACES WITH ILLUMINATING MEANS DISPOSED THEREBETWEEN AND ELECTRICAL MEANS ENERGIZABLE TO OPERATE SAID ILLUMINATING MEANS TO TRANSMIT LIGHT THROUGH SAID DISPLAY FACES, THE IMPROVEMENT COMPRISING: SPACED PARALLEL UPPER AND LOWER FRAME MEMBERS RESPECTIVELY DEFINING THE UPPER AND LOWER EDGES OF SAID SIGN; SPACED PARALLEL SIDE FRAME MEMBERS EXTENDING BETWEEN SAID UPPER AND LOWER FRAME MEMBERS AND THUS DEFINING THE SIDE EDGES OF SAID SIGN; EACH OF SAID FRAME MEMBERS HAVING ITS OPPOSED END EDGES MITERED TO PERMIT ALL OF SAID FRAME MEMBERS TO BE ASSEMBLED INTO A POLYGONAL CONFIGURATION HAVING CORNERS WHERE TWO MITERED END EDGES ABUT ONE ANOTHER; AND CORNER BRACKET MEANS AT EACH OF SAID CORNERS TO INTERCONNECT THE ANGULARLY DISPOSED FRAME MEMBERS WHOSE END EDGES DEFINE SAID CORNERS; EACH OF SAID FRAME MEMBERS INCLUDING AN ELONGATED INTEGRALLY FORMED CHANNEL MEMBER AND ELONGATED INTEGRALLY FORMED DISPLAY FACE RETAINING MEANS REMOVABLY SECURED TO SAID CHANNEL MEMBER; EACH OF SAID CHANNEL MEMBERS INCLUDING A WEB PLATE EXTENDING TRANSVERSELY BETWEEN SAID SPACED APART DISPLAY FACES AND BEING SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF SAID DISPLAY FACES; FLANGE MEANS PROJECTING PERPENDICULARLY FROM THE SIDE EDGES OF SAID WEB PLATE AND THUS BEING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID DISPLAY FACES; EACH OF SAID FLANGE MEANS INCLUDING AN INWARDLY EXTENDING WEB PROJECTING LATERALLY THEREFROM TOWARD THE OPPOSITE FLANGE MEANS; SAID WEBS BEING SUBSTANTIALLY PARALLEL TO AND SPACED AWAY FROM SAID WEB PLATE TO THUS DEFINE A SLOT INTO WHICH SAID CORNER BRACKET MEANS EXTENDS; SAID FACE RETAINING MEANS INCLUDING A FLAT PORTION HAVING A FIRST FLANGE PROJECTING PERPENDICULARLY DOWNWARD FROM ONE SIDE EDGE THEREOF, A SECOND FLANGE PROJECTING PERPENDICULARLY UPWARD FROM THE OPPOSITE SIDE EDGE THEREOF AND A THIRD FLANGE PROJECTING PERPENDICULARLY UPWARD THEREFROM IN SPACED PARALLEL RELATION TO SAID SECOND FLANGE; SAID SECOND AND THIRD FLANGE DEFINING THEREBETWEEN A RECESS WHICH RECEIVES AND RETAINS AN EDGE OF ONE OF SAID DISPLAY FACES; SAID FIRST FLANGE BEING JUXTAPOSED TO AND REMOVABLY SECURED TO THE OUTER SURFACE OF SAID FLANGE MEANS; SAID CORNER BRACKET MEANS EACH INCLUDING A PAIR OF PERPENDICULARLY INTERCONNECTED LEGS, EACH OF WHICH HAS A WIDTH SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN SAID FLANGE MEANS AND A HEIGHT SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN SAID WEBS AND SAID WEB PLATE; SAID CORNER BRACKET MEANS THUS HAVIG ONE LEG THEREOF INSERTABLE IN ITS DEFINED SLOT IN ONE CHANNEL MEMBER AND HAVING ITS OTHER LEG INSERTABLE IN ITS DEFINED SLOT IN THE ANGULARLY DISPOSED CHANNEL MEMBER WHICH FORMS A CORNER WITH SAID ONE CHANNEL MEMBER; ONE OF SAID CORNER BRACKET MEANS HAVING ITS LEGS THUS INSERTED AT EACH OF SAID CORNERS WHEREBY ALL OF SAID FRAME MEMBERS ARE THUS INTERCONNECTED AND ASSEMBLED INTO SAID POLYGONAL CONFIGURATION.